I have the trans, bellhousing off so I can see exactly the gap between starter and flywheel. I have 3 thin shims in place right now.I have the gap slightly more so it's not tight. the battery I'm using is temporary, is a deep cycle, fully charged, with a charger set on high boost. it barely turns engine over.I'll try a battery out of my diesel truck. if it still doesn't turn over normally. I'll probably try a high torque Powermaster starter or similar. 200 ft pd tq. I've heard some bad things about Advance Auto parts, like alternators, water pumps, starters- I got a new water pump from them once that had a bent shaft. maybe I got a weak starter, The timing should be right on, it started while on engine stand easily. I'll get htis figured out soon.